21301100110312 has 24 divisors (see below), whose sum is σ = 43900511076450. Its totient is φ = 9682318231520.

The previous prime is 21301100110307. The next prime is 21301100110357.

It is a happy number.

21301100110312 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 18910965558276 + 2390134552036 = 4348674^2 + 1546006^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11002633387 + ... + 11002635322.

Almost surely, 2^{21301100110312} is an apocalyptic number.

21301100110312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21301100110312 is an abundant number, since it is smaller than the sum of its proper divisors (22599410966138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21301100110312 is a wasteful number, since it uses less digits than its factorization.

21301100110312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22005268737 (or 22005268722 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

It can be divided in two parts, 21301100 and 110312, that added together give a palindrome (21411412).

The spelling of 21301100110312 in words is "twenty-one trillion, three hundred one billion, one hundred million, one hundred ten thousand, three hundred twelve".